1. Bridge the Gap: From Spatial Planning to Strategic Projects
2. Barca, F. (2009) An Agenda for a Reformed Cohesion Policy: A Place-based Approach to Meeting European Union Challenges and Expectations, Independent Report prepared at the request of Danuta Hübner, Commissioner for Regional Policy, p. 243 (Brussels: CEC)
3. BENELUX (2003) Aperçu des systèmes d'aménagement du territoire dans le Benelux – Coopération Benelux en matière d'aménagement du territoire, p. 96 (Brussels: Union Economique du Benelux)
4. Building ‘Euro-Regions’